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Old 03-12-2016, 06:56 PM   #29
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2016 30' Classic
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Casey I ran it at 6.5 for the FC 25. Tried to do the normal setup as outlined in the GMC manual. Get to about 15mph on a level surface, truck to neutral and use the manual controller. Set the number as high as it would go without lockup. Since it won't lock at a setting of 10 I simply leave it at 10.

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2015 GMC Sierra 2500HD Duramax
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Old 03-13-2016, 10:52 AM   #30
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Originally Posted by caseywsj View Post

You really set the brake controller as high as it can go on your Duramax? I've set mine to 6.5 with our new Classic. Have towed it over 2000 miles now. Thx.
I am not the original poster, but I have a 2016 30' Classic and 2015 Duramax with integrated brake controller and cannot lock up the brakes with the gain set to 10. Both the truck and trailer have been tested are are supposedly fine. I definitely have braking power, just not enough to lock the trailer tires.

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Old 03-13-2016, 05:40 PM   #31
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Any buddies with a different TV that you can hook up and do a brake test with?

I know nothing about your IBC but have you double checked the settings if so equipped on the IBC?
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Old 03-14-2016, 07:44 AM   #32
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Al, I can't speak for the Ram but our 15 Silverado pulling a 30' classic does not lock the brakes. After I hook up, I have the gain set on 9 I believe. I pinch the controller and and see if it holds the trailer and truck and it does. I don't know what the truck computer does to keep things stabilized but it plays a role. I have never tried to slide my trailer wheels, just stop straight in line with the truck.
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Old 03-14-2016, 08:57 AM   #33
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The reason I am concerned about locking the brakes is all the procedures I have read for setting brake controller gain say to go to the point where the brakes lock up and back off until they don't. I am not close to locking up so I believe I am not close to the braking power I should have.



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